Category: Electronics Engineering

Latest multiple choice questions with answers for electronics engineering students.

Electronics Engineering MCQs [Set 8]

71. Paramagnetic substance has a relative permeability of
A. Slightly less than one
B. Equal to one
C. Slightly equal to one
D. Very much greater than one

72. A group of magnetically aligned atoms is called
A. Range
B. Lattice
C. Domain
D. Crystal

73. The force between two magnetic poles varies with the distance between them. The variation is__________ to the square of that distance.
A. Equal
B. Greater than
C. Directly proportional
D. Inversely proportional

74. Permeability means 
A. The conductivity of the material for magnetic lines of force
B. The magnetization test in the material after exciting field has been removed
C. The strength of an electromagnet
D. The strength of the permanent magnet

75. ___________is an electromagnet with its core in the form of a close magnetic ring.
A. Solenoid
B. Paraboloid
C. Toroid
D. Cycloid

76. A magnetic material losses its ferromagnetic properties at a point called 
A. Curie temperature
B. Inferred absolute temperature
C. Room temperature
D. Absolute temperature

77. Small voltages generated by a conductor with current in an external magnetic field.
A. Skin effect
B. Magnetic effect
C. Hall effect
D. Flywheel Effect

78. The emission of electrons from hot bodies is called
A. Radiation effect
B. Edison effect
C. Skin effect
D. Half effect

79. The ability of a mechanically stressed ferromagnetic wire to recognize rapid switching of magnetization when subjected to a dc magnetic field.
A. Wartheim effect
B. Wiedemann effect
C. Wiegand effect
D. Edison effect

80. An effect which is generally used in the gausameter to measure flux density.
A. Skin effect
B. Magnetic effect
C. Hall effect
D. Flywheel effect

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